Top Tech Jobs & Startup Jobs in Chicago, IL

Join the evening core engineering team to develop and maintain finance and trading systems (PnL, positions, reconciliations). Collaborate cross-functionally, support production environments, monitor performance, troubleshoot incidents, and hand off to Budapest for follow-the-sun operations while contributing across the full product lifecycle.

Identify, analyze, and resolve security vulnerabilities while enhancing security infrastructure, threat detection, and compliance processes across PEAK6's systems.

Join a core engineering team to design, build, and support proprietary trading systems on an evening shift. Responsibilities include full-stack development, system stewardship, collaborating with global teams (Budapest), testing (manual and automated), performance optimization, and rapid production troubleshooting to ensure 24-hour trading continuity.

Design and develop high-performance trading systems, optimize execution algorithms, mentor junior engineers, and troubleshoot production issues in a fast-paced market environment.

Lead corporate accounting and consolidation for PEAK6 and subsidiaries. Manage a small accounting team, oversee month-end close, maintain GL and controls, support audits, drive process improvements and automation, and evaluate accounting software tools.

The Database Administrator will design and administer database infrastructures, manage systems, participate in incident calls, and optimize performance, while collaborating with teams to ensure effective data delivery.

Provide overnight operational and technical support for trading systems: monitor systems and risk limits, troubleshoot disruptions, coordinate with traders, engineers, and vendors, perform root cause analysis, adjust limits per policy, and maintain detailed operational documentation.